AU7720094A - Improved method for bleaching lignocellulosic pulp - Google Patents

Improved method for bleaching lignocellulosic pulp

Info

Publication number
AU7720094A
AU7720094A AU77200/94A AU7720094A AU7720094A AU 7720094 A AU7720094 A AU 7720094A AU 77200/94 A AU77200/94 A AU 77200/94A AU 7720094 A AU7720094 A AU 7720094A AU 7720094 A AU7720094 A AU 7720094A
Authority
AU
Australia
Prior art keywords
improved method
lignocellulosic pulp
bleaching lignocellulosic
bleaching
pulp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU77200/94A
Other languages
English (en)
Inventor
Thomas P Gandek
James C. Joseph
A. Pikulin Michael
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Camp Patent Holding Inc
Original Assignee
Union Camp Patent Holding Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Union Camp Patent Holding Inc filed Critical Union Camp Patent Holding Inc
Publication of AU7720094A publication Critical patent/AU7720094A/en
Abandoned legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0042—Fractionating or concentration of spent liquors by special methods
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
AU77200/94A 1993-09-02 1994-09-02 Improved method for bleaching lignocellulosic pulp Abandoned AU7720094A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US11604093A 1993-09-02 1993-09-02
US116040 1993-09-02
US26809994A 1994-06-29 1994-06-29
US268099 1994-06-29
PCT/US1994/009951 WO1995006772A1 (fr) 1993-09-02 1994-09-02 Procede ameliore de blanchiment de pate lignocellulosique

Publications (1)

Publication Number Publication Date
AU7720094A true AU7720094A (en) 1995-03-22

Family

ID=26813841

Family Applications (1)

Application Number Title Priority Date Filing Date
AU77200/94A Abandoned AU7720094A (en) 1993-09-02 1994-09-02 Improved method for bleaching lignocellulosic pulp

Country Status (7)

Country Link
EP (1) EP0720676A4 (fr)
JP (1) JPH09502229A (fr)
AU (1) AU7720094A (fr)
BR (1) BR9407409A (fr)
CA (1) CA2170398A1 (fr)
FI (1) FI960972L (fr)
WO (1) WO1995006772A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4641629B2 (ja) * 2001-01-26 2011-03-02 日本製紙株式会社 セルロース質繊維材料パルプの漂白方法
FI20022068A7 (fi) * 2002-11-20 2004-05-21 Metso Paper Inc Menetelmä ja järjestelmä mekaanisen massan valmistuksessa
FI126563B (en) * 2012-03-12 2017-02-15 Upm Kymmene Corp A method and system for treating fluid flows at a pulp mill
FI128900B (en) * 2012-03-12 2021-02-26 Upm Kymmene Corp A method for treating liquid flows at a chemical pulp mill and use of low chloride content process waters at a chemical pulp mill
MY182098A (en) * 2012-09-27 2021-01-18 Andritz Inc Chemical treatment of lignocellulosic fiber bundle material,and methods and systems relating thereto
SE546896C2 (en) * 2022-11-15 2025-03-04 Valmet Oy Method for bleaching cellulose pulp and system for producing bleached cellulose pulp from recycled textile material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO142091C (no) * 1977-10-17 1980-06-25 Myrens Verksted As Fremgangsmaate ved ozonbehandling av raffinoermekanisk og termomekanisk masse.
EP0211945A4 (fr) * 1985-02-14 1987-07-06 Edward Francis Elton Procede et appareil de delignification alcaline de materiaux fibreux lignocellulosiques.
US5085734A (en) * 1989-02-15 1992-02-04 Union Camp Patent Holding, Inc. Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
DE69019350T2 (de) * 1990-05-17 1996-02-15 Union Camp Patent Holding, Inc., Wilmington, Del. Umweltfreundlicheres verfahren zum bleichen von lignocellulosischen materialien.
SE469842C (sv) * 1992-01-21 1996-01-15 Sunds Defibrator Ind Ab Blekning av kemisk massa med peroxid

Also Published As

Publication number Publication date
FI960972A7 (fi) 1996-04-29
BR9407409A (pt) 1996-11-12
FI960972L (fi) 1996-04-29
EP0720676A4 (fr) 1998-03-04
CA2170398A1 (fr) 1995-03-09
WO1995006772A1 (fr) 1995-03-09
EP0720676A1 (fr) 1996-07-10
JPH09502229A (ja) 1997-03-04
FI960972A0 (fi) 1996-03-01

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